Genuine OEM Volkswagen Control Unit For Diesel Engine, part number 03L906012AR2H0. This is the main electronic control module for the diesel engine, managing fuel injection, emissions, and other critical functions. It is located within the engine bay assembly. This unit has a weight of 0.88 kg and dimensions of 0.205m x 0.18m x 0.04m. Genuine OEM parts ensure precise calibration and reliable performance, crucial for engine management systems.